A wheel initially has an angular velocity of -36 rad/s but after 4.0s its angula

Question

A wheel initially has an angular velocity of -36 rad/s but after 4.0s its angular velocity is -24 rad/s. If its angular acceleration is constant the value is : 2.0 rad/s^2 -2.0 rad/s^2 3.0 rad/s^2 -3.0 rad/s^2 -6.0 rad/s^2 A wheel starts from rest and has an angular acceleration that is given by alpha (t) = 3 rad/s^4)t^2 The angle through which it turns in time t is given by: [(1/8)t^4] rad/s4 [(1/4)t^4) rad/s4 [(1/2)t^4] rad/s4 (t^4) rad/s4 12 rad A flywheel is initially rotating at 20 rad/s and has a constant angular accclcralton. After 9.0 s it has rotated through 360 rad. Its angular acceleration is: 3.3 rad/s 4.4 rad/s 6.7 rad/s 11 rad/s 48 rad/s

Explanation / Answer

1. C     3 rad/s2

2. B      1/4 t^4 rad/s^4

3. b      4.4 rad/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.